json provides list where each item can open an overlay on itemtap

json provides list where each item can open an overlay on itemtap

Hi
I'm a newbie to Sencha Touch and desperately need some help on this. Could some please provide a sample of how or where in this code I'm going wrong? I've read and there's really a lack of COMPLETE samples here! I'm pulling out my freaking hair already on this. There's no errors being reported